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Recognised as Colour

#232F97

  • #232F97
  • Blue
  • Dark
  • Nearest: Midnight blue

#232F97 is a blue with RGB values 35, 47, 151 and HSL 234°, 62%, 36%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#232F97#232F97
HEX#232F97
RGBrgb(35, 47, 151)
RGB (0–1)0.1373, 0.1843, 0.5922
RGB percentages13.7%, 18.4%, 59.2%
HSLhsl(233.8, 62.4%, 36.5%)
HSV / HSBhsv(233.8, 76.8%, 59.2%)
CMYK76.8%, 68.9%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,305,943
CSS custom property--colour: #232F97;

Brightness & contrast

Relative luminance0.04625WCAG 2.x, 0 is black and 1 is white
Perceived brightness65.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.91:1
Contrast with white10.91:1WCAG normal text: AAA
Contrast with black1.92:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#DCD068

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00429Ano red cones; affects about 1% of men; ΔE 15.7 from the original
Deuteranopia#003795no green cones; the most common form, about 1% of men; ΔE 8.9 from the original
Tritanopia#004B5Fno blue cones; rare, and affects men and women equally; ΔE 60.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.91:1WCAG large text: AAA
Contrast with black, large text1.92:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 13Rebecca purple · ΔE 16.4Dark slateblue · ΔE 18.2Slate blue · ΔE 19.9Indigo · ΔE 19.9Navy · ΔE 20.4
Nearest named CSS colourMidnight blue (#191970)ΔE 13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#978B23
Analogous#236997, #512397
Triadic#97232F, #2F9723
Split complementary#975123, #699723
Tetradic#972369, #978B23, #239751

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9EA5E8
Lighter +30%#747FDF
Lighter +20%#4B59D5
Lighter +10%#2D3CC0
Darker −10%#19226E
Darker −20%#101544
Darker −30%#06081B
Darker −40%#000000
More saturated +25%#0C1DAE
Less saturated −25%#3A4180

Channel breakdown

R35
G47
B151
Red35 (13.7%)
Green47 (18.4%)
Blue151 (59.2%)
Hue233.79°
Saturation (HSL)62.37%
Lightness36.47%
Dominant channelBlue
Hex per channelR 23 · G 2F · B 97

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Every value on this page was computed from “232f97” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.